Sectional sofa



FIG. 1 is a front perspective view of the sectional sofa, incorporating the ornamental features of my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a top plan view thereof, with both ends rounded; and,

FIG. 5 is a top plan view thereof, with both ends squared.

All module abutment surfaces are substantially flat and unornamented. 

The ornamental design for a sectional sofa, as shown and described. 